Vehicle-jack.



, PATENTBD JULY 21, 1903.

A. O. FENCE. VEHICLE JACK.

APPLIOATION rum) nov. s, 1902.

N0 MODEL.

A24 apmcz oyjziyafto nez I I PATENT Tatented July 21, 1905.

OFFICE.

ASA o. PENOE, OF CONVERSE, INDIANA..-

VEHICLE-JACK- SPECIFICATION formingpart of Letters Patent No. 733,992, dated July 1903;.

Application filed November 3, 190:2. Serial No. 129,862. (No model.)

To all whom, it meaty concern:

Be it known that I, ASA O. PENOE, a citizen of the United States, residing in Converse, in the county of Miami and State of Indiana, have invented new and useful Improvements in Vehicle-Jacks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This present invention relates to a mechanism composed of interdependent'and cooperating parts arranged to be operated by hand for the purpose of raising a slight distance heavy articles-such, for instance, as wheeled vehicles.

One object of my invention is to provide a simple, durable, and positive means for elevating slightly portions of a vehicle in order that the Wheels may be removed for the purpose of oiling or repairs.

Another object is to providea self-locking vehicle-jack composed of a minimum of mechanical parts which will be simple in character, compact in form and construction, easily operated and maintained, and whereby the operator will be enabled to perform his work with certainty and precision and with a minimum of time and labor devoted thereto.

Another object is the provision of an article of manufacture, a vehicle-jack, which can be manufactured and sold at a comparatively low price.

Other objects and advantages of my invention will appear from the following specification and from the drawings forming a part thereof.

My invention consists in a self-locking vehicle-jack embodying certain new and useful features and details of construction and relative disposition of parts, as hereinafter particularly set forth, illustrated in the drawings, and incorporated in the claims hereunto appended.

In detail the invention relates to a vehiclejack constructed substantially as shown in the accompanying drawings, in which- Figure 1 is a perspective elevation of a complete vehicle-jack constructed in accordance with my invention. Fig. 2 is a perspective elevation of the upper portion of my invention. Fig. 3 is a detail perspective view of the lower portion of the main post. Fig. 41.- is

adetail perspective view of the base.

Similar indices refer to and denote like parts throughout the several views.

Referring now to the drawings, A denotes the main post of my invention, which is provided with an elevated shoulder a on its upper end.

a represents a slot extending laterally through the post A in its upper portion. 0. represents a substantially square hollow space extending centrally up into the post A from the lower end thereof, and a represents a plurality of round holes arranged vertically and extending laterally and centrally through the lower portion of the post A.

B represents a lever provided with a hand-. bolt 1), fulorumed in the slot at by the bolt 1. The point b of the lever Bis curved slightly upward and is provided with a hole therethrough to'receive the pivotal bolt 3.

0 represents a dog, substantially of the form shown, provided with a relatively level shoulder 0 near its inner end, with an under surface 0 of same contour and adapted to engage the shoulder a. The outer end of the dog 0 extends slightly downward and is rounded, with a slot 0'' cut'therein adapted to receive the end b of the lever B, which is pivoted therein by the bolt 3, as shown.

D and D represent two link-plates pivotally mounted near the top and near the outer edges of the post A by the bolt 4. The outer ends of the link-plates D and D are pivotally mounted on each side and near the inner end of the dog 0 by the bolt 5.

E represents the base-block, adapted to rest on the floor or ground, and F represents a square post rising from the center of the base E. The size of the post F is of same contour and slightly smallerthan the space a in the post A, in which it is adapted to operate. Through the post F are a plurality of holes F of same size and in alinementwith the holes a in the post A. 2 represents a pin or bolt adapted to be inserted in the holes 00' and F.

It will now be seen that normally the lower end of the postA will rest on'the top of the base E, with the post F extending up into the space ed. The elevation of the post A may be adjusted by raising up the post A from the base E to the height desired and then inserting the ICC pin 2 through corresponding holes a and F, which will secure the post A at the elevalion desired within the capacity of theleugth of the post F. Desiring now to elevate one end of an axle of a vehicle in order to remove the wheel therefrom, I set the base E on the floor at the point desired, placing the shoulder under the axle near the wheel. The lever B and the dog 0 being in the position shownin Fig. 1, I then press down on the lever B by the hand-bolt 1) until the lever B and the dog 0 are in the position shown in Fig. 2, in

- which position the shoulder e of the dog 0 will rest on the shoulder a of the post A, the angle of the link-plates D and D now being such that the weight of the vehicle will hold the dog C in engagement with the end of the post A, thus serving as an automatic lock for the jack.

By the operation just described it is apparent that the axle of the vehicle resting on the shoulder 0 will have been elevated a sufiicient distance to allow the vehicle-wheel to be removed therefrom. In order tolower the axle and remove the jack, I have only to lift up on the lever B and elevate it to the position shown in Fig. 1.

My invention is perfectly adapted to accomplish the results for which it is intended, and it is evident that changes in and modifications of the specific construction herein shown and described may be made and that analogous parts may be used to accomplish the same results without departing from the spirit of my invention or sacrificing any of its many advantages, and the specific construction of the details of my invention may be variously changed without altering the essential principles which are claimed as new.

Having now fully shown and described my invention and the best mode for its construction and use to me known at this time, what I claim as new, and desire to secure by Letters Patent of the United States, is

1. In a vehicle-jack the combination, of a main post, a shoulder formed on the upper end of the post, a slot formed through the post, a lever fulcrumed in said slot and extending out through either side thereof, a dog pivoted to the outer end of said lever, linkplates pivoted on eachside near the top of the post and to each side of the inner end of the dog, all substantially as shown and described and for the purposes set forth.

2. In a vehicle-jackthe combination, of a main post, a slot formed through said post, a lever fulcrumed in said slot and extending out through either side thereof, a dog pivoted to the outer end of said lever, link-plates pivoted on each side near the top of said post and to each side of theinner end of said dog, a base on which the lower end of the said post is adapted to rest, a post secured to and extending up from said base into a cavity extending up into said main post, a plurality of holes arranged vertically and extending laterally and centrally through the lower portion of said post, and a plurality of holes formed through the post extending up from the base, all substantially as shown and described and for the purposes set forth.

3. In a vehicle-jack the combination of a main post A with a slot at therethrough a shoulder a formed on its upper end a cavity a" extending up therein from the lower end and openings a' extending through the lower end of said main post A, a lever B fulcrumed in the slot 0. by the bolt 1, a dog 0 pivoted to the outer end of the lever B by the bolt 3, the link-plates D and D pivotally uniting theinner end of the dog 0 to the upper end of the post A, of the base E and the post F extending upward thereform, the openings F through the post F, and the pin 2 providing means for securing the post A at the desired elevation on the post F, all substantially as shown and.

described for the purposes set forth.

In witness whereof I have hereunto signed my name to this specification in the presence of two subscribing witnesses.

ASA O. FENCE.

Witnesses:

WILLIAM O. LUCAS, HENRY J. RAUSMAN. 

